Journal
AIP ADVANCES
Volume 7, Issue 8, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4993719
Keywords
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Funding
- U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division
- U.S. Department of Energy [DE-AC05-00OR22725]
- Department of Energy
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Shear banding dynamics in bulk metallic glasses (BMGs) is manifested by the spatiotemporal evolution of strain fields which in turn depend on structural heterogeneities. The spacing of these heterogeneities, as a characteristic length scale, was determined from the analysis of nanoindentation pop-in tests using a stochastic model. Furthermore, the pre-stress by elastic bending and residual stress by plastic bending of BMGplates were found to dramatically decrease such spacings, thus increasing heterogeneity density and mechanically rejuvenating the glass structure. (C) 2017 Author(s).
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